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    <title>Document</title>
    <script>
        function getRandom(min, max) {
            return Math.floor(Math.random() * (max - min + 1)) + min;
        }

        var random = getRandom(1, 50);
        var i = 1;


        while (i <= 10) {
            var num = prompt('你来猜：(输入1-50之间的数)');
            if (num > random) {
                alert('你猜大了');
            } else if (num < random) {
                alert('你猜小了');
            } else {
                alert('针不戳，猜对了');
                break; //退出整个循环
            }
            i++;

        }

    </script>
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